The Sacred Waters in the Sky X SPELL Activate 1 "The Sanctuary in the Sky" directly from your Deck, or add 1 monster that mentions "The Sanctuary in the Sky" from your Deck to your hand, then, if "The Sanctuary in the Sky" is on the field or in either GY, you can gain 500 LP for each "Hyperion" and "The Agent" monster you control
Any Deck can benefit from it, but it's especially useful with archetypes that intentionally send cards to the Graveyard, like "Lightsworn"
I could see Hornet Queen hitting $4-$5 easily, which is where the card will end up eventually anyway thanks to casual demand
Usually, but not always, this means Book of Moon
Plus, I drop her all of the time and exile a tapped target out of nowhere
3 The Phantom Knights of Ragged Gloves 3 The Phantom Knights of Ancient Cloak 3 The Phantom Knights of Silent Boots 3 The Phantom Knights of Tear Scale 2 The Phantom Knights of Stained Greaves 3 Kagemucha Knight 2 Danger